Half to william e



(No Model.)

F. E. GHBRRIER.

WHIFFLETRBE COUPLING.

No. 391,021. Patented Oct. 16, 1888.

WITN EEEES- 3 has flay UNITED STATES PATENT OFFICE.

FRANCIS E. CHERRIER, OF FITCHBURG, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TO \VILLIAM E. PUTNEY, OF SAME PLACE.

WHlFFLETREE-COUPLING.

SPECIFICATION forming part of Letters Patent No. 391,021, dated October 16, 1888.

Serial No. 279,103.

(No model.)

T at whom it may concern.-

Be it known that I, FRANCIS E. CHERRIER, of Fitchburg, in the county of Worcester and State of Massachusetts, have invented new and useful Improvements in WVhiffletreeCou p- ]ings,of which the following is a specification.

The object of this invention is to construct a whittletree coupling without weakening the whiffletree by passing a bolt through it, and

[0 yet produce a strong, reliable, and eflicieut coupling which will not rattle or shake.

The nature of the invention is fully described below and illustrated in the accompanying drawings, in which [5 Figure 1 isa view in perspective of a whiffletree coupling embodying my invention. Fig. 2 is atransvcrse section of the same. Fig. 8 is a plan view of the under side of that portion of the coupling which is attached to the Fig. 4. is a plan view of the up per side of that portion of the coupling which is attached to the cross-bar.

Similar letters of reference indicate like parts.

A represents the cross bar extending from one shaft to the other.

B is the whittletree.

C is a metallic plate screwed to the upper side of the crossbar-and formed upinto a circular box, C, with four inwardly-projecting lips, C. Upon the bottom of this box is laid a packing, c.

D is a metallic plate screwed to the under side of the whifiietrec and formed up intoacen- 5 tral circular block, D, provided with four radial legs, D. By means of the extra. number of legs (two being the usual number) and lips there is always a full bearing-surface, however much the whii'fletree is turned, and the packing, which isofappreciablethicknesses will be seen by the space in Fig. 2 left for it, effectually prevents rattling and endwise rocking.

E is a plate screwed to the under side of the cross-bar, and having its portion E bent at right angles against the rear side ofsaid crossbar. From this portion is bent the broad lip E, in which is out a curved slot, 6. The portion E of this plateis centrally perforated,and the bolt H passes through this perforation and through the central perforation,h,in the plate 0 into the threaded hole h in the block D. The bolt does not pass through the Whittletree, but leaves it intact, being held by the metallic block above named.

I is a tie-strap or back-stay. This is a metallic rod of substantially the shape shown, one end, I, of which is threaded and extends through aslot, d, in the extension D of the plate in front of the whiifletree, and the other end, 1, of which is threaded and extends through the curved slot 6 in the portion E of the plate E. The two ends of the tiestrap are held by suitable nuts, a and b. A branch, 1, integral with the main portion I,extends down close to and back of the whiflletree, as shown, 6 and by means of its Tshaped end 1 catches under parallel projections 01, extending from the plate D,said projections being bent downward at their ends to prevent the T-shaped end from slipping out. A cross piece, i, extends at right angles from the tie-strap on the upper side of the whiffletree, but is not essential to the invention. As the whifiletree turns, the end I of the tie-strap moves in the arc of a circle in the slot 0, while the plate contain- 7 ing said slot effectually prevents the whiffletree from drawing forward and down. Practically the coupling is doubly locked, and the whiffietree is not weakened by the passage of a bolt through it.

Having thus fully described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a whittletree coupling, the combination of the cross-bar provided with the plate 85 E E E, slotted on a curve ate, the whiffletree provided with the plate D, having the projections d d and slotted at d, and the tiestrap I, its main portion extending from the slot d over the whiffietree to the slot c, said go tie-strap being provided with the branch 1', substantially as and for the purpose set forth.

2. In a whiifietree-coupling, the combination of the cross-bar provided with the plate E E E, slotted on a curve at e, and the plate C,centrall y perforated, and provided with the box C, having the lips C and packing a, the whiffletree provided with the plate D, having the central hole, h, block D, legs D, perforation d, and projections d, the tie-strap I I, and bolt H, all substantially as and for the purpose described.

FRANCIS E. CHERRIER.

\Vitnesses:

CHAS. E. KIRBY, F. O. CURRIER. 

